{"cve":"CVE-2026-74360","nvd":{"published":"2026-08-15T06:22:37.567","modified":"2026-08-17T06:19:30.767","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject exclusive maps for bpf_map_elem iterators\n\nExclusive maps (aka excl_prog_hash) are meant to be reachable only\nfrom the single program whose hash matches. This is enforced by\ncheck_map_prog_compatibility() when the map is referenced from a\nprogram such as signed BPF loaders.\n\nA bpf_map_elem iterator, however, binds its target map at attach\ntime in bpf_iter_attach_map() instead of referencing it from the\nprogram, so the exclusivity check is never reached. On top of that,\nthe iterator exposes the map value as a writable buffer.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e","https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5","https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:10.689564601+00:00"},"epss":{"cve":"CVE-2026-74360","score":0.00206,"percentile":0.10729,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}